Tick the correct choice:
  
1. Assertion: Guard cells regulates stomatal opening and closing.
 
Reason: Stomata helps in the regulation of gaseous exchange in the leaf and also aids in transpiration.
 
 
2. Assertion: Trichomes are multicellular epidermal hairs present on the stem, which helps in the prevention of water evaporation due to transpiration.
 
Reason: Root hairs are unicellular elongations of epidermal cells that aid in absorbing minerals and water from the soil.